3718806918 has 16 divisors (see below), whose sum is σ = 7438795056. Its totient is φ = 1239405440.

The previous prime is 3718806907. The next prime is 3718806919. The reversal of 3718806918 is 8196088173.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3718806919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5271 + ... + 86402.

It is an arithmetic number, because the mean of its divisors is an integer number (464924691).

Almost surely, 2^3718806918 is an apocalyptic number.

3718806918 is an abundant number, since it is smaller than the sum of its proper divisors (3719988138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3718806918 is a wasteful number, since it uses less digits than its factorization.

3718806918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98439.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 3718806918 is about 60982.0212685673. The cubic root of 3718806918 is about 1549.2965129505.

The spelling of 3718806918 in words is "three billion, seven hundred eighteen million, eight hundred six thousand, nine hundred eighteen".